Finding the Fourth Proportional to 76,315.99, 105,322.54 and 42,335.43

Step by Step Solution

1. Step 1: Write the proportion equation
   76,315.99 : 105,322.54 = 42,335.43 : x
2. Step 2: Convert to fraction form
   76,315.99/105,322.54 = 42,335.43/x
3. Step 3: Cross multiply
   76,315.99x = 105,322.54 × 42,335.43
4. Step 4: Simplify right side
   76,315.99x = 4,458,875,019.59
5. Step 5: Solve for x
   x = 4,458,875,019.59/76,315.99
6. Step 6: Final answer
   x = 58,426.48